METHOD OF DETERMINING FREQUENCY GAIN OF VOLTAGE FREQUENCY CONVERTER

摘要

PURPOSE: To compensate a fixed error with respect to fine by eliminating high- cost components. CONSTITUTION: A control computer R of electric system ES regulates an input voltage UE of voltage/frequency converter UF derived from the reaction of electric system ES equal with zero, the voltage/frequency converter UF converts the input voltage UE into a pulse train signal P at a proportional frequency, and a central frequency fo required for calculating a frequency gain Vf is determined from this signals P.